By NPR Staff
A little Muppet girl has started a sensation. The brown doll with a beautifully kinky mop of hair sings "I Love My Hair." The song was written by Joey Mazzarino, Sesame Street's head writer. He wrote the song to help his adopted daughter celebrate herself and, of course, her hair.

Catch your favorite moments from past seasons of High School Quiz Show! Watch students from around Massachusetts go head-to-head and get ready for Season 6.

Oscar tries to give his mom the worst Grouchy Mother's Day ever, but he has keen competition from his sister Bunny. Also: the "Word on the Street" features Rachel Griffiths ("Brothers & Sisters") discussing the word "dozen" with Elmo.